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I counted the MCP tools in my Cursor setup: 882,846 tokens of tool definitions, re-sent every turn

This story is from 2026-10-13. It is preserved in the archive; the latest stories are on the live feed.

882,846 That's not my download count. Not my traffic either. It's the full text of the 209 MCP tool definitions I have wired into Cline, Claude Desktop, Cursor, and Hermes Agent. Added up, token by token, on my own machine. Then it hit me. That whole block gets re-sent on every single turn. The cos…

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  1. 2026-10-13 07:49 · DEV Community — AI
    I counted the MCP tools in my Cursor setup: 882,846 tokens of tool definitions, re-sent every turn

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